[GHC] #11521: Test failures for the `profasm` way when BUILD_PROF_LIBS=YES

[GHC]

#11521: Test failures for the `profasm` way when BUILD_PROF_LIBS=YES
-------------------------------------+-------------------------------------
           Reporter:  thomie         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Test Suite     |           Version:  7.11
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 When running `validate --slow`, which also builds libraries the profiling
 way now (see #11496), a lot of tests are failing for test ways `profasm`
 and `profthreaded`.

 To reproduce, set `BUILD_PROF_LIBS=YES` in `mk/build.mk` and run `make` in
 toplevel directory. Then run:

 `make test CLEANUP=1 WAY=profasm TEST="T2552 cgrun045 T5626 cgrun051
 cgrun016 cgrun059 T2120 T11193 T9078 overflow3 overflow2 overflow1 T10728
 T7919 T11049 T5550 conc021 SplicesUsed T5654b-O1 T5654b-O0 T2552 Rules1
 T3220 T7837 ColInference3 hpc_fork ffi008 fptrfail01 TH_spliceViewPat
 overloadedrecfldsrun04 overloadedlabelsrun04 arr004 arr007 arr008 arr003
 assert T8089 readFloat stm060 T5628 tough T7411 qq007 qq008 qq009"`

 (some of the above tests might be failing for other reasons, but most
 should be about this issue)

 Here is an example failure:
 {{{
 --- ./codeGen/should_run/cgrun045.stderr.normalised     2016-01-31
 16:34:03.831816885 +0100
 +++ ./codeGen/should_run/cgrun045.run.stderr.normalised 2016-01-31
 16:34:03.831816885 +0100
 @@ -1,3 +1,6 @@
  cgrun045: hello world!
  CallStack (from HasCallStack):
    error, called at cgrun045.hs:<line>:<column> in <package-id>:Main
 \ No newline at end of file
 +CallStack (from -prof):
 +  Main.main (cgrun045.hs:6:1-52)
 +  Main.CAF (<entire-module>)
 \ No newline at end of file
 *** unexpected failure for cgrun045(profasm)
 }}}

 Is this expected behavior? The double callstacks look a little weird to
 me.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11521>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler